Something similar happened in Boston decades ago when the city decide to build Storrow drive over what was supposed to be parkland donated by Charles Storrow’s widow. Instead, they turned Boston’s riverfront into a ghastly highway.

https://www.wbur.org/news/2009/07/17/esplanade-future

I don’t know the particulars of this Texas case, but the lack of green space in American cities is often the result of a car centric and building height limited urban planning.

Paris is an excellent example of how urban density and green space can go hand-in-hand.